Characterization of biomass waste torrefaction under conventional and microwave heating - Details

author：

Ho, S.-H. (Ho, S.-H..) ^[1] | Zhang, C. (Zhang, C..) ^[2] | Chen, W.-H. (Chen, W.-H..) ^[3] | Shen, Y. (Shen, Y..) ^[4] | Chang, J.-S. (Chang, J.-S..) ^[5]

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Scopus

Abstract：

To　evaluate　the　potential　of　microwave　heating　for　biomass　torrefaction,　the　torrefaction　performances　and　energy　utilization　of　coffee　grounds　and　microalga　residue,　under　conventional　and　microwave　heating　were　investigated　and　compared　with　each　other.　For　the　two　biomass　samples,　the　dehydrogenation　of　the　coffee　grounds　was　more　sensitive　to　torrefaction　severity,　whereas　the　microalga　residue　consumed　more　energy　under　the　same　torrefaction　conditions.　Microwave　heating　under　lower　torrefaction　severity　had　a　higher　energy　efficiency.　As　regard　to　the　lower　solid　yields　or　higher　torrefaction　severity,　the　energy　efficiency　of　microwave　heating　was　close　to　that　of　conventional　heating,　irrespective　of　the　feedstocks.　This　revealed　the　comparable　energy　consumption　state　between　the　two　heating　modes.　Accordingly,　it　is　concluded　that　microwave　torrefaction　is　more　efficient　for　biomass　upgrading　and　densification　than　conventional　torrefaction.　©　2018　Elsevier　Ltd

Keyword：

Biomass wastes and biochar; Energy efficiency; Microwave heating; Torrefaction; Upgrading energy index (UEI)

Community：

[ 1 ] [Ho, S.-H.]State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
[ 2 ] [Zhang, C.]State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
[ 3 ] [Chen, W.-H.]Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan, 701, Taiwan
[ 4 ] [Chen, W.-H.]Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan, 701, Taiwan
[ 5 ] [Shen, Y.]College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350116, China
[ 6 ] [Chang, J.-S.]State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
[ 7 ] [Chang, J.-S.]Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan, 701, Taiwan
[ 8 ] [Chang, J.-S.]Department of Chemical Engineering, National Cheng Kung University, Tainan, 701, Taiwan

Reprint 's Address：

[Chen, W.-H.]Department of Aeronautics and Astronautics, National Cheng Kung UniversityTaiwan

Email：

chenwh@mail.ncku.edu.tw

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Source ：

Bioresource Technology

ISSN： 0960-8524

Year： 2018

Volume： 264

Page： 7-16

6 . 6 6 9

JCR@2018

9 . 7 0 0

JCR@2023

ESI HC Threshold：212

JCR Journal Grade：1

CAS Journal Grade：1

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 85

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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